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(No Model.) 7 E; T. GORDON.

ART OF MANUFACTURING TURNING LATHES.

ATTORNEYS.

n. PEYERS. mwmm mr, Washington. 0 c

UNITED STATES,

PATENT EDGAR T. GORDON, OF NEW YORK, ASSIGNOR TO WILLIAM H. GOMES, OFBROOKLYN, N. Y.

ART OF MANUFACTURING TURNlNG-LATHES.

SPIFICIFIOATION forming" part of Letters Patent No. 281,263, dated July1'7, 1883.

Application filed July 7,1882. (X model.)

To all whom it may concern.-

Be it known that I, EDGAR T. GORDON, of the city, county, and State ofNew York, have invented a new and useful Improvement in the Method ofCasting Parts of Lathes of Soft Metal, of which the following is a full,clear, and exact description. Y

The object of the invention is to save the laher of tapping, drilling,planing, and keying, which constitutes such a large element of the costoflathes, by casting certain parts as hereinaiter described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional elevation of my improved lathe, showing itattached to a bench or table. Fig. 2 is a front elevation of thedrive-wheel removed from its axle. Fig. 3 is a sectional elevation ofthe tailstock and bedpiece, taken on the line as m of Fig. 1. Fig. 4 isa similar view of the tool-rest, taken on the line 9* y of Fig. 1. Fig.5 is a sectional view of a mold for casting the chucks, and Fig. 6 is asectional view of one of the chucks.

A is the bedpiece of the lathe, placed upon the bench or table A.

B is the tail-stock, carrying the threaded spindle G and set-screw E forthe spindle.

F is the sliding rest, which slides upon the bed-piece A.

G is the head-stock, carrying the spindle J face-plate K, and pulley L.

M is a chuck cast in the mold N, and O is the drive-wheel, which runsupon the axle P,

screwed into the upright Q, immediately below the pulley L.

In casting, the tail-stock B, the set-screw E, and-the spindle O, whichmay be of iron, and having been first threaded and pointed at oneend,.and slotted, as shown at a, atthe other, are place-din the mold.The metal is now poured in, and the stock B and handle 1) are both cast5 atonce, the slot c answering the purpose of keying the handle 1) onthe spindle C.

c 0 represent the gutters formed in the bottom of the stock to fit uponthe ribs 0 c of the ted, as shown at d, and then placed in the mold, andthen the metal is poured, casting the pulley L and face-plate K both atthe same time. In this manner the slot d and threads of the spindlepermanently secure and key the face-plate on the spindle J, and at thesame time key the pulley L, so that while it cannot revolve on thespindle, it yet can slide off at the blunt end of the spindle.

The head-stock G is cast without boring or drilling by first placing aseparate solid spindle of the same size as the spindle J in the mold andthen pouring the metal in the mold, the solid spindle being so arrangedas to form the socket d for the blunt end of the spindle J, as shown inFig. 1.

In casting the chuck M, which is adapted to be screwed upon the spindleJ for holding a drill or other tool, the mold N is first provided at oneend with the pointed and threaded spindle g, and at the opposite end andin line with the spindle g with the square tapering piece of steel 71,and then the metal is poured through. the gate 2' in the mold, thespindle g forming the threaded recess q for the spindle J, and the pieceof steel'h forming the socket q for receiving the shank of the drill orother tool.

In casting the drive-wheel O, the spokes j, crank-screw 7c, and a centerrod or piece to form the hole through the hub are first placed in themold, and the metal is then poured in,

casting the rim Z, plate m, and hub n all at I,

the same time. The slide-rest F is cast without drilling or tapping byplacing the screwo and a bar to form the passage 32 for the tool rest qin the mold, and then the metal is poured in. .,In this manner it willbe seen that a lathe for doing light turning and for the use of boys maybe produced at very small cost, as all of the parts of the lathe arecast and made to fit I without turning or tapping, thus saving a 5 greatdeal of labor and expense.

Having thus described my invention, What severally by casting metal inand around said. I claim as new, and desire to secure by Lettersprepared parts while confined in molds, sub- Patent, is stantially asdescribed. 7

As an improvement in the art of making v EDGAR T. GORDON. 5 toyturning-lathes, preparing the Wearing por- Vvitnessesz' tions and otherparts, as herein specified, of I H.. WEsT, steel or iron, and completingthe structure 0. SEDGWICK.

